This may spark an interesting discussion.

http://web.camaross.com/forums/showt...hreadid=150611

The thing in the video will definitely kill the upcoming LS6 CTS-V. FYI, it seems that the guy swapped in a GN motor in CTS.

Wouldn't it be nice to have V6 turbo an optional engine on CTS? For that matter, is there anyone out there making turbo kits for these cars yet? May be a good way to add some 60 HP (not necessarily a beast for 11 second passes).

 

I'm waiting.......

I'm waiting........


I'm waiting........



.....for someone to say... "THAT'S RICE"!!!!!!!!!

 

I don't know if that was the day I was there, but when I saw that thing it sounded like it was stock. Someone was telling me it was the stock motor with a turbo.

 

Originaly they were going to make the CTSv have a turbo V6, I think 330HP was the goal. Then they decided to use the 400HP LS6 instead.

 

VERY cool!!!


-Mike

 

That was pretty cool. The only problem is that I hate the way turbo 6's sound.
I like how at the end, when the time was posted, everyone in the stands all cheered and were very surprised.

 

Makes a good case for a new Buick Grand National....hmmmm

 

Just by hearing it I can tell its a GN motor with some good mods, and most guys don't like the turbo 6 sound when i pull up alongside them either....MUHAHAHAHAH!

 

Now to me, it didn't sound completely like a GN motor.
When he did his burn-out, the pitch of the engine was too high. My buddys GN exhaust note is much deeper and throatier.
Then again, the intake and exhaust plumbing would be all different in the CTS and therefore would probably alter the sound.
It absolutely sounded like a GN when he pulled his foot out of it after the burn-out.

 

It sounded 100% like a GN. The turbo had the high pitch whine not the motor. I just got done watching videos of about 200 runs at our buick picnic yesterday, not to mention watching the same videos every damn picnic. I have hours of tape of these things. This was also posted on tb.com and either the owner or an aquatience posted that it was in fact a GN motor.

Here's the owners thread on tb.com. http://www.turbobuick.com/forums/sho...light=cadillac

There are also other threads to describe how he did the swap.

 

can u say ?

seriously though, that is a very cool combo, an awesome GN turbo 6 in a CTS! bet the guy in the other lane didnt see that coming, hehe.

 

According to a later post, it's a race built 4.1 block with a turbo in that CTS. If true, it's not like the guy took a GN engine & bolted it in with only a few mods. Do a similar race-type rebuild on a CTSv, and you can no doubt do the same thing..... and quite possibly top him.

 

Its an LC4 4.1 block which is actually weaker than a stock GN motor. He would have accomplished the same exact thing with a GN motor and some bolt ons. I think he didn't want to do it because I don't beleive there are many aftermarket lower end parts for the CTS engine, you'd have to custom do all the headers/exhause etc. The 4.1 block is almost the exact same, dimensions as the 3.8 that is why all the parts of a sock LC2 Gn motor bolt up to it. He is in the process of shaking the car down and has alot more to go for alot less money than a CTSv will cost.

 

No doubt! Used CTSs are getting below the 25 grand mark.

You pointed out the lack of lower end pieces for Caddy's 3.2 engine. Didn't he have to do alot of custom work anyway to fit the 4.1 in there? The 3.2 is a 60 degree design versus the 3.8/4.1 V6's 90. If so, why go with the weaker 4.1 over the GN 3.8?

 

I'm actually assuming there are no aftermarket parts for Caddy's 3.2. It actually looks like he was able to fit the stock GN headers and downpipe, (remember, GM fit an LS6 in there) so mocking up a set of motor mounts I would think would be a pretty easy task. As for going to a 4.1 over the 3.8, you'd have to ask some of the guys who hav done it. I ask and all I get back is more cubes ='s more power. I don't understand because it is known in the Buick community that the 4.1 can handle about 500rwhp, to the 3.8's 600rwhp. I guess if you only want to make 500hp, its a little easier to to do it with the 4.1, and of course, some people just have to be different. I asked on the Buick board why in 3 posts in the title he calls it an LC2 engine (stock 3.8 GN motor) but no one answered.